Knitting machine



March 12, 1929. ,1. E. MOORE 1,704,804

KNITTING MACHINE Filed March 5, 1927 5 Sheets-Sheet 1 FIGJ.

INVENTOR March 12 1929.

J. E MOORE KNITTING MACHINE Filed March 1927 5 Sheets-Sheet INVI'ZNTOIZMarch 12, 1929. J,E MOORE 1,704,804

KNITTING MACHINE Filed March 5, 1927 s Sheets$heet 5 IN VEN TOR March12, 1929. J. E. MOORE KNITTINGIIMACHINE Filed March 1927 5 Sheets-Sheet4 March 12, 1929. .1. E. MOORE KNITTING MACHINE 5 Sheets-Sheet FiledMarch 192 Patented Mar. 12, 1929.

UNITED STATE'SK JOHN nanasrmooan; or sonmoa'r, ENGLAND.

KNITTING MACHINE.

-Appl1cat1on fled liarch 3, 1927, Serial No. 172,385, and in GreatBritain March 8, 1926.

This invention relates to the manufacture of cloth wherein the warpthreads are secured to the weft threads by lock loops and has for itschief object to enable it to be 5 made more quickly with a view toobtaining increased production. It is primarily intended formanufacturing cotton' waste cloths such as are used for cleaningpurposes, butvariousother kindsof cloth'can 1 be manufactured in thesame manner.

According to this invention the weft is caused to traverse the warpthreads in one direction, each warp thread being crotcheted -.or locklooped around the weft thread after 1 the latter has'b'een placed inosition. If a number of sets of warp threa s are arranged side b sidethey are traversed by a number of we t feeds which successively followone another, the ends of the weft bein out be-' tween each. two adjacentsets to pro uce separate widths of cloth.

In order that the said invention may be clearly understood and readilycarried into effect, the same is described more fully with brackets ecarried by reference to the accompanying drawings,

Fig. 1 is an elevation of part of a machine for manufacturing cloth inaccordance with, this invention. 1

Fig. 2 is a' Ian of'part of the machine with portions roken away.

Fig. 3 is an elevation of part of the machine with a portion brokenaway.

Fi 4 is a vertical section taken approxl- 'matefy on line 4-4 of Fig. 2of part of the machine.

Fig. 5 is an elevation of a warp creel and letting-off motion; a r

Fig. 6 is an elevation. showing a construction of part of Fig. 5 and aweft cutting "appliance.

' Fig. 7 is an elevation of a cloth beam and mechanism for rotating it.Fig. 8 isa plan of part of two cam plates. Fig. 9 is a detached viewof aknitting needle element drawn to a larger scale. F Fig. 10 is a se'ctiontaken on line 10-10 of ig. 11 is an end elevation of the needle 0.element, and

Figs. 12 to 19 are progressive-views showing a warp thread beincrotcheted or look loo ed around a weft thread.

indicates the weft and B the warp. In

the example shown the machine is constructed to manufacture six lengthsof cloth E. The rail 1) is fixed bwhere it is united with the weftthreads A 'bylatch needles H, one set of needles rails k which are fixedto the stationary table F. Each needle carrier .is provided at oneoperation and for this purpose six separate weft supplies in the form ofcops a are mounted on a rotary table'C, the weft being drawn in an axialdirection from the 00 cops through guide eyes 0 Each weft thread is thentaken through a lower guide eye a to a weft carrier a comprising a tubeor an inverted channel shaped guide which lnclines at its forward endand is attached 66 to an arm a that is adjustably mounted on the tableC. Thisweft carrier travels alon an annular space a between two rails Dan to a stationary table F carried by vertical frames 7 and providedwith a bearing f for a central shaft G which carries the rotary table 0,guide eyes 01 and cam plates hereinafter described.- The rail E is madein the form of a channel and carries a number of warp supporting members6 each of which is bored at b and formed with an aperture b for thepassage of a warp thread B as shown more particularly in Figs. 12 and13. The railE is fixed to are supported from the frames ijby adjustablymounted brackets e. ach warp. thread B, comes from a bobbin 6 on a'creelbf, is taken over a ide roller 6 and between two rods 6 b. he rod b'is'stationary, and the rod 6 is moved to and fro to let off- -war'p fromthe bobbins as and when required during the formation of the lock loop.For this purpose the rod 6 is carried by two end frames 12 that arepivotally mounted about the rodb and moved in one direction by a ,rod 6against the action of a spring b which moves the end frames and rod 6 inthe other direction. The lower endof the rod 6 is connected to acrank-b. (Fig. 4) on a rod 6 which is free to turn in a bracket 6" thatis adjustably secured to the verti- 'cal frame 7. Projecting from therod b is a fin er 6 which is actuated by a cam b to li the rod b anumber of such cams be- 1'00 ing mounted on a cam plate 6" fixed on the1 central shaft G. Each warp thread after passing the rod 6 is threadedthrough the aperture 6 in the warp supporting-member being rovided foreach iece of cloth. Each neele H is eccentrica ly or otherwise mountedin a needle carrier ibi slidably mounted in with a stud h which is actedupon by cam upright rods 6 which 80 surfaces h k on the underside of thetable C for imparting a backward and forward movement to the-needlecarrier and needle. Each cam stud is fixed on a vertical bracket 71.(Fig. 11) mounted on a sleeve 71. (Fig. 9). through which the needlecarrier passes. To prevent the cam stud from turning about the axis ofthe needle carrier the lower end of the bracket is slotted at h (Fig.11) to engage a guide 71, (Fig. 4) which is arranged parallel with theneedle carrier. To prevent relative endwise movement of the. needlecarrier and sleeve and allow the needle carrier to turn in the latter,each sleeve is slotted transversely at it" (Figs. 9 and 10) for thepassage of a screw it or pin which projects through such slot. .VVhenthis screw or pin is removed, the needle carrier can be drawn out of themachine. Each needle carrier is arranged to receive a partial turn inalternate directions in addition to the backward and forward movements.This is convenlently efi'ected by providing each needle carrier near itsinner end with two pins h arranged at an angle to one another. Thesepins operate in conjunction with plane surfaces h fixed at intervals toa table 72. which is fixed on the shaft Grand rotates therewith. Fixedto thetable It above the gap which exists between each two of the suraces h is an arm or plate'h. The pins h together with the aforesaidplane surfaces, gaps and plates causethe needles tobe turned positivelyin alternate directions as and when required and held ositively in thepositions to which they have been turned. After each needle hascompleted its forward stroke and is beginning to return, it is turnedover to a position in which the hook will engage a warp thread and drawit inwardly over the inner iderail the needle again turning tov causethe hook at the end to occupy its upright position onits inward stroke.The weft carrier now carries the weft past the loop of war that issuspended from the needle clear of t e end of the latch and depresses aportion of the war thread below the two guide rails leaving the weft onthe top of such thread. This position is shown clearly in Fig. 12. Theneedle then moves outwardly V as shown in Figs. 14. and 15, the latchbeing turned over by the first loop as the needle slides throu h it. By.the time the needle has arrived at t e end of its outward stroke, therear end of the weft carrier has left the needle as shown in Fig. 16-.The needle then commences its return stroke and is again turned as shownin Fig. 17 to take another loop of warp thread and drawit throu h theloop that is on the needle and whic now slips off asshown in Fig. 18, aportion of the warp thread still being retained on the hook of theneedle. It will now be seen that a lock loop has been formed in the warparound the weft. As each warp thread is I drawn inwardly by the needlehook, the weft is prevented from being drawn inwardly by a series ofpins d which project upwardly on the inner rail D. Afterthe weft hasbeen deposited, it is automatically cut in suitable proximity to theedge of the cloth. For this purpose a cutter J mounted on a bracket jattached to the stationary table F may be actuated by link and leverconnections j from a rod 7' that is connected at its upper end to one ofthe end frames b that is rocked in the manner previously described. Eachtime a weft carrier has trav-- ets is a rod 76 carrying a pawl k that iscaused to engage its ratchet wheel by a spring M, and operating inconjunction with such pawl is a spring controlled retaining" pawl kacross the top of the roller K. Passing through an e elet in a portionof the rod 70 is one end 0 a two-armed lever 10 that is pivotallymounted on the frame f. The other arm of this lever is steadied by aguide post 70 andcarries a roller is that rides over a series of cams kon a cam plate is that is rigidly fixed on the central shaft G. Eachtime one of these cams passes-under one of the rollers is it lifts thecorresponding lever k and actuates the pawl k to advance the ratchetwheel.) When the taking up roller is made in two sections two sets ofcams k are provided one set for each section the said camsbeing'soarranged that the two parts of each roller are actuated successively.The cloth passes under the taking up roller K over the rod is to a beamor cloth roller L (Figs. 1 and 7) which is 'rotatably mounted inbrackets Z secured to the upright rods 0 This beam is rotatedsimultaneously with the taking up roller K by a pawl Z engaging aratchet wheel Z on the beam or rotating with it and actuated by a bellcrank lever Z that is maintained in contact with the lower end of therod is by a spring I. The pawls for actuating the taking up and clothrollers are returned to their initial positions by a spring k. Ifdesired a friction device maybe a plied to the cloth beam L for keepingthe fabric taut,

What I claim as my invention and desire to secure .by Letters Patent inthe United States is :4

1. In a machine for *manufacturing'cloth of the character specified,means for guiding a circle of warp threads, means for traversmounted ona rod is which extends ing a weft thread around the circle of warthreads, a circle of radially mounted latcli needles, and meansfor-imparting endwise reciprocating and opposite turning movements tosaid needles to crotchet the warp threads around the weft thread as thelatter traverses the circle of warp threads.

2. In a machine for manufacturing cloth of the kind specified, means forguiding a circle of warp threads, means for traversing a weft threadaround the circle of warp, threads, threads around the weft threadthreads, a circle of radially mounted latch needles and.rotatableandslidable carriers for said needles, each carrier having twopins arranged at an angle to one another,

means for cizotcheting the warp? as the latter" traverses the clrcle' of-w arp threads, means and a rotary device having spaced surfaces andarms at the spaces between said surfaces, said surfaces and arms movingacross opposite sides of said carriers and being adapted to contact withsaid pins to rotate the carriers and needles in opposite directions, andsaid device having means to reciprocate the needles, so that thereciprocatory and rotary movements of said needles will crotchet thewarp threads around the weft thread.

4. In a machine for manufacturing cloth of' the character described,means for guiding a circle of warp threads arranged in sets for aplurality of sections of cloth,

means for traversing a weft thread around the circle of warp threads,means for crocheting the warp threads around the weft thread as thelatter traverses the circle of Warp threads, means for cutting the weftthread between the sets of warp threads, and a cloth taking up motionhaving a plurality of sections, one for each section of cloth, operablein succession in cooperation with the second named. means.

In witness whereof I have signed this specification.

JOHN ERNEST MOORE.

